🧅 When to Plant Scallions in Zone 10

Short answer: sow Dec 28 – Jan 11. Here's the full schedule, built from zone 10's typical frost dates.

TaskWindow
Direct sowDec 28 – Jan 11
Fall planting
counted back from first frost
Oct 25 – Nov 8
Zone 10 frost window
Jan 25 → Dec 20
~329 frost-free days
Spacing
1″ / 8″
plants / rows
Maturity
60–70 days
from sowing

Growing scallions in zone 10

Sow thickly in a band and harvest by thinning — no other allium is this low-maintenance. Succession-sow spring through late summer for a nearly continuous supply.

Zone 10 covers south Florida, coastal Southern California, low desert — frost is rare — the calendar flips, with the main garden running fall through spring. Zone dates are medians: frost timing varies within a zone with elevation and terrain, so treat these windows as a solid default and refine them with your own city’s dates below.

Make it local

These windows use zone 10's typical frost dates (last frost ~Jan 25, first frost ~Dec 20). For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.

Frequently asked questions

When do I plant scallions in zone 10?

Direct sow Dec 28 – Jan 11, counted from zone 10's typical last frost around Jan 25. As a hardy crop it tolerates the light frosts on either side of that window.

Can I direct sow scallions in zone 10?

Yes — direct sow Dec 28 – Jan 11. This crop prefers direct sowing; its roots dislike transplanting.

Can I plant scallions for a fall harvest in zone 10?

Yes — sow Oct 25 – Nov 8, counted back from the typical Dec 20 first frost so plants mature before serious cold. Light fall frosts improve flavor rather than ending the crop.